Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underwater reverse bottom sealing hollow pile construction method
The invention relates to the technical field of constructional engineering, and discloses an underwater reverse bottom sealing hollow pile, which is characterized in that slurry retaining walls are adopted for pore-forming retaining walls, after a steel outer sleeve retaining wall is placed in a hole with a slurry retaining wall, a steel inner sleeve is placed, three annular water stop steel plate rings are welded at the bottom of the steel inner sleeve, and a positioning plate is welded on the plane of the outer side of the steel inner sleeve every 120 degrees; the construction method comprises the following steps of: pre-burying a grouting pipe on the outer side of a steel outer sleeve for later grouting reinforcement, pre-burying a grouting pipe on the outer side of the steel outer sleeve for later grouting reinforcement, pouring concrete in a lower guide pipe between the inner sleeve and the outer sleeve, replacing slurry of a retaining wall, pouring bottom sealing concrete at the bottom of the inner steel sleeve, and when the strength of the concrete reaches 75% of the design strength, pouring the bottom sealing concrete into the inner steel sleeve. And after water and slurry in the hole are pumped out, a bottom sealing circular steel plate is welded, and the underwater reverse bottom sealing hollow pile is formed by injecting the slurry. According to the construction method, the large-diameter hollow pile is manufactured in an underwater geological soil layer, the hollow part has an operation space, equipment can be installed, the working procedure is simple, materials are saved, the quality is good, construction is easy, and popularization is convenient.
本发明涉及建筑工程技术领域，且公开了水下逆作封底空心桩，采用泥浆护壁成孔护壁，在有泥浆护壁孔中安放入钢外套筒护壁后，在安放钢内套筒，钢内套筒底部焊有三道环形止水钢板圈，钢内套筒外侧平面每120度焊一个定位板，竖向每2米一道，在钢外套筒的外侧预埋注浆管后期注浆加固，在钢外套筒的外侧预埋注浆管后期注浆加固，在内、外套筒中间下导管浇筑混凝土，置换护壁的泥浆，在内钢套筒底部浇筑封底混凝土，混凝土强达到设计强度75％时，抽空孔中水和泥浆后，再焊封底圆形钢板，注水泥浆成水下逆作封底空心桩。该工法在有水下地质土层中制作大直径空心桩，空心部分有操作空间，可以安装设备，工序简单，节约材料，质量好，易施工，便于推广。
Underwater reverse bottom sealing hollow pile construction method
The invention relates to the technical field of constructional engineering, and discloses an underwater reverse bottom sealing hollow pile, which is characterized in that slurry retaining walls are adopted for pore-forming retaining walls, after a steel outer sleeve retaining wall is placed in a hole with a slurry retaining wall, a steel inner sleeve is placed, three annular water stop steel plate rings are welded at the bottom of the steel inner sleeve, and a positioning plate is welded on the plane of the outer side of the steel inner sleeve every 120 degrees; the construction method comprises the following steps of: pre-burying a grouting pipe on the outer side of a steel outer sleeve for later grouting reinforcement, pre-burying a grouting pipe on the outer side of the steel outer sleeve for later grouting reinforcement, pouring concrete in a lower guide pipe between the inner sleeve and the outer sleeve, replacing slurry of a retaining wall, pouring bottom sealing concrete at the bottom of the inner steel sleeve, and when the strength of the concrete reaches 75% of the design strength, pouring the bottom sealing concrete into the inner steel sleeve. And after water and slurry in the hole are pumped out, a bottom sealing circular steel plate is welded, and the underwater reverse bottom sealing hollow pile is formed by injecting the slurry. According to the construction method, the large-diameter hollow pile is manufactured in an underwater geological soil layer, the hollow part has an operation space, equipment can be installed, the working procedure is simple, materials are saved, the quality is good, construction is easy, and popularization is convenient.
本发明涉及建筑工程技术领域，且公开了水下逆作封底空心桩，采用泥浆护壁成孔护壁，在有泥浆护壁孔中安放入钢外套筒护壁后，在安放钢内套筒，钢内套筒底部焊有三道环形止水钢板圈，钢内套筒外侧平面每120度焊一个定位板，竖向每2米一道，在钢外套筒的外侧预埋注浆管后期注浆加固，在钢外套筒的外侧预埋注浆管后期注浆加固，在内、外套筒中间下导管浇筑混凝土，置换护壁的泥浆，在内钢套筒底部浇筑封底混凝土，混凝土强达到设计强度75％时，抽空孔中水和泥浆后，再焊封底圆形钢板，注水泥浆成水下逆作封底空心桩。该工法在有水下地质土层中制作大直径空心桩，空心部分有操作空间，可以安装设备，工序简单，节约材料，质量好，易施工，便于推广。
Underwater reverse bottom sealing hollow pile construction method
水下逆作封底空心桩工法
LIU JINSONG (Autor:in) / WANG HONG (Autor:in) / WANG HONGXING (Autor:in) / YU TAO (Autor:in) / WANG JILIANG (Autor:in) / CHENG YUE (Autor:in) / WANG KAI (Autor:in) / JIANG BO (Autor:in) / LI CHENGZHE (Autor:in) / CAO YU (Autor:in)
06.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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